Nissan Pathfinder. Manual - part 516

 

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Nissan Pathfinder. Manual - part 516

 

 

EC-370

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P1553 BATTERY CURRENT SENSOR

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

3.

CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT

1. Check the continuity between battery current sensor harness connector and ECM harness connector.

2. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

4.

CHECK BATTERY CURRENT SENSOR

Check battery current sensor. Refer to 

EC-373, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Replace battery negative cable assembly.

Component Inspection

INFOID:0000000009178287

1.

CHECK BATTERY CURRENT SENSOR

1. Turn ignition switch OFF.

2. Reconnect harness connectors disconnected.

3. Disconnect battery negative cable.

4. Install jumper cable between battery negative terminal and body

ground.

5. Turn ignition switch ON.

6. Check the voltage between ECM harness connector terminals

under the following conditions.

Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to 

PG-86, "How to Handle Battery"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery negative cable assembly.

Battery current sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F34

3

F52

68

Existed

Battery current sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F34

4

F52

66

Existed

ECM

Voltage (V)

Connector

+

–

Terminal

Terminal

F52

66

68

Approx. 2.5

JPBIA3287ZZ

P1554 BATTERY CURRENT SENSOR

EC-371

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P1554 BATTERY CURRENT SENSOR

DTC Logic

INFOID:0000000009178288

DTC DETECTION LOGIC

NOTE:

If DTC P1554 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to

EC-354, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to 

EC-372, "Component Function Check"

.

NOTE:

Use component function check to check the overall function of the battery current sensor circuit. During this

check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-373, "Diagnosis Procedure"

.

Component Function Check

INFOID:0000000009178289

1.

PRECONDITIONING

TESTING CONDITION:

• Before performing the following procedure, confirm that battery voltage is more than 12.8 V at idle.

• Before performing the following procedure, confirm that all load switches and A/C switch are turned

OFF.

>> GO TO 2.

2.

PERFORM COMPONENT FUNCTION CHECK

With CONSULT

1. Start engine and let it idle.

2. Select “BAT CUR SEN” in “DATA MONITOR” mode with CONSULT.

3. Check “BAT CUR SEN” indication for 10 seconds.

“BAT CUR SEN” should be above 2,300mV at least once.

Without CONSULT

1. Start engine and let it idle.

2. Check voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-373, "Diagnosis Procedure"

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1554

BAT CURRENT SENSOR
(Battery current sensor perfor-
mance)

The output voltage of the battery current 
sensor is lower than the specified value 
while the battery voltage is high enough.

• Harness or connectors

(The sensor circuit is open or shorted.)

• Battery current sensor

ECM

Voltage (V)

Connector

+

–

Terminal

F52

66

68

Above 2.3 at least once

EC-372

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P1554 BATTERY CURRENT SENSOR

Diagnosis Procedure

INFOID:0000000009178290

1.

CHECK BATTERY CURRENT SENSOR POWER SUPPLY

1. Disconnect battery current sensor harness connector.

2. Turn ignition switch ON.

3. Check the voltage between battery current sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

2.

CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between battery current sensor harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

3.

CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT

1. Check the continuity between battery current sensor harness connector and ECM harness connector.

2. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

4.

CHECK BATTERY CURRENT SENSOR

Check battery current sensor. Refer to 

EC-373, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Replace battery negative cable assembly.

Component Inspection

INFOID:0000000009178291

1.

CHECK BATTERY CURRENT SENSOR

1. Turn ignition switch OFF.

2. Reconnect harness connectors disconnected.

Battery current sensor

Ground

Voltage (V)

Connector

Terminal

F34

1

Ground

Approx. 5

Battery current sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F34

3

F52

68

Existed

Battery current sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F34

4

F52

66

Existed

P1554 BATTERY CURRENT SENSOR

EC-373

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

3. Disconnect battery negative cable.

4. Install jumper cable between battery negative terminal and body

ground.

5. Turn ignition switch ON.

6. Check the voltage between ECM harness connector terminals

under the following conditions.

Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to 

PG-86, "How to Handle Battery"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery negative cable assembly.

ECM

Voltage (V)

Connector

+

–

Terminal

Terminal

F52

66

68

Approx. 2.5

JPBIA3287ZZ

 

 

 

 

 

 

 

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